We divide 20921 by 99
Our goal is to divide 20921 by 99.

On to step 1:
If we divide 2 by 99, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 99

On to step 2:
When dividing 20 by 99, we get 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 99

Moving on to step 3:
99 goes into 209 2 times with a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 11 after subtracting 198 from 209.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 99

Going ahead to step 4:
If we divide 112 by 99, we get 1 and a remainder of 13.
The next digit of our result is 1. 
Result so far: 21.0
Subtract 99 from 112 to get 13.
Take the next digit (1) from the dividend and append it to 13, then repeat: 131 / 99

Moving on to step 5:
If we divide 131 by 99, we get 1 and a remainder of 32.
Put 1 as the next digit of the answer. 
Result so far: 211.0
Subtracting 99 from 131 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 6:
99 can be fit into 320 3 times, resulting in a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 211.3
Subtract 297 from 320 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
When dividing 230 by 99, we get 2 with a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 211.32
Subtract 198 from 230 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 8:
99 goes into 320 3 times with a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 211.323
If we subtract 297 from 320, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 9:
The number 99 fits into 230 2 times, leaving a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 211.3232
Subtracting 198 from 230 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 10:
The number 99 fits into 320 3 times, leaving a remainder of 23.
The next digit of our result is 3. 
Result so far: 211.32323
If we take 297 away from 320, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 11:
99 can be fit into 230 2 times, resulting in a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 211.323232
The remainder is 32 after subtracting 198 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 12:
When dividing 320 by 99, we get 3 with a remainder of 23.
The next digit of our result is 3. 
Result so far: 211.3232323
Subtract 297 from 320 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 13:
99 goes into 230 2 times with a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 211.32323232
If we take 198 away from 230, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 211.32323232, with a leftover of 3.2e-08.